KR102229821B1 - Folding bed frame - Google Patents

Abstract

The present invention discloses a folding bed frame that facilitates transport and storage by folding or adjusting the length of the side portion.
The bed frame according to the present invention includes an upper frame, a lower frame, and a support frame connecting and supporting the upper frame and the lower frame so that the upper frame and the lower frame form a two-layer structure, and the upper frame and Both side portions of the lower frame facing each other are formed including a folding portion for folding the side portion, the folding portion includes a rotating portion and rotating frames coupled to the rotating portion at both sides of the rotating portion, and the rotating portion includes the rotating frames. It is a folding bed frame, characterized in that the rotation drive in the inner direction or the outer direction of the upper frame or the lower frame.

Description

Folding bed frame {Folding bed frame}

The present invention relates to a bed frame, and more particularly, to a folding bed frame that facilitates transport and storage by folding or adjusting the length of the side portion.

In general, the upper part of the bed frame has a structure in which a matrix is installed. Such a bed frame has a problem that it is not easy to transport because it has a large area and a large volume, and requires a lot of space for storage.

To solve this problem, a folding bed has been disclosed in the prior art. However, the conventional folding bed consists of a simple method of folding once. This folding bed is to change the transport and storage form by reducing the length of the horizontal or vertical with little reduction in volume. However, considering the actual use of transport and storage, the bed frame is still large even if it is folded in half, and therefore, it is difficult to transport with small transport means such as motorcycles and passenger cars, so it must be transported by large transport means, so space and There is a problem of low cost efficiency. In addition, since bed mattresses are generally heavy and beds are used for a long time, durability of the foldable portion of the folding bed is also a problem.

In the case of a prefabricated bed, which is another prior art, there is efficiency in transport and storage. However, it cannot be used simply as a folding bed, and it requires a complicated assembly procedure, so installation convenience is a problem, and it is difficult to assemble accurately unless an expert assembles it, and its durability is a problem with a large number of coupling parts. In addition, when reassembly is possible depending on whether or not reassembly is possible, the fixed part is weak and durability is even more problematic, and when reassembly is impossible, there is a problem that it is difficult to transport and store after reassembly.

In order to solve the above problems, an object of the present invention is to provide a folding bed frame that can flexibly adjust the volume, length, and shape of the bed frame in consideration of the actual transport and storage usage form.

An object of the present invention is to provide a folding bed frame with improved durability of the bed frame.

An object of the present invention is to provide a folding bed frame that is simple and convenient to install a bed frame.

An object of the present invention is to provide a folding bed frame in which the above effects are maintained regardless of whether or not a bed frame is installed.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned will be clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. I will be able to.

The folding bed frame according to the present invention includes an upper frame, a lower frame, and a support frame connecting and supporting the upper frame and the lower frame so that the upper frame and the lower frame form a two-layer structure, and the upper frame And both side portions of the lower frame facing each other, wherein the folding portion includes a rotating portion and a rotating frame coupled to the rotating portion at both sides of the rotating portion, and the rotating portion includes the rotating frame. It is a folding bed frame, characterized in that the rotation drive in the inner direction or the outer direction of the upper frame or the lower frame.

In the folding bed frame according to the present invention, each of the side portions facing each other includes a first folding portion for rotating the rotating frames in the inward direction, and a second folding portion and a third folding portion disposed on both sides of the first folding portion. Including, the second folding part and the third folding part may be characterized in that as the coupling axis of the rotation frames moves in the inner direction of the upper frame or the lower frame, the rotation frames are rotated in the outer direction. have.

The folding bed frame according to the present invention may be characterized in that the length of the rotation frames of the second folding part and the length of the rotation frames of the third folding part are different.

In the folding bed frame according to the present invention, the support frame may include a support frame connecting and supporting the folding part of the upper frame and the folding part of the lower frame.

The folding bed frame according to the present invention may be characterized in that the bed frame includes at least one intermediate support, and the intermediate support connects and supports both side portions facing each other.

The folding bed frame according to the present invention may be characterized in that the at least one intermediate support portion is formed in a two-layer structure.

The folding bed frame according to the present invention includes a coupling structure for coupling the intermediate support portion to the side portion, the support frame, or the other intermediate support portion to which the intermediate support portion and the intermediate support portion are connected, and the coupling structure includes a protrusion and Including a receiving portion, the protrusion and the receiving portion may be characterized in that the coupling and separation in a form that meshes with each other.

The folding bed frame according to the present invention may be characterized in that the side portion includes at least one groove, and the groove has an empty space around a boundary between an upper surface and an inner surface of the side portion.

The folding bed frame according to the present invention includes at least a pair of chins on the inner side of the side portion, and the pair of chins protrude above and below the space with a certain space of the inner surface therebetween. It may be characterized in that each is formed by.

In the folding bed frame according to the present invention, the rotating part includes a joint spreading in both directions around a boundary part between the rotating frames, and the joint part is connected to each of the rotating frames by a coupling part for rotationally driving. It can be characterized by that.

The folding bed frame according to the present invention includes a corner support plate connected to the support frame supporting the corners of the upper frame and the lower frame, and the corner support plate is at least one connected to the corner from the support frame supporting the corner. And a structure extending toward a side portion, and the structure may be characterized in that it includes at least one hole in the structure.

In the folding bed frame according to the present invention, both side portions facing each other include a lead-in frame and a lead-out frame, and the lead-in frame may be inserted into the lead-out frame.

According to the folding bed frame of the present invention, it is possible to exhibit the effect of fluidly adjusting the volume, length, and shape of the bed frame by folding or adjusting the length of the side portion of the bed frame.

According to the folding bed frame of the present invention, the bed frame is formed in a two-layer structure, and the interior of the bed frame is supported by an intermediate support, thereby improving the durability of the bed frame.

According to the folding bed frame of the present invention, the bed frame can be easily and conveniently installed by folding and unfolding the bed frame without separate assembly.

According to the folding bed frame of the present invention, it is possible to provide an effect of maintaining the above effects regardless of whether or not the bed frame is installed.

The effects to be achieved in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description. .

1 is a perspective view showing a folding bed frame structure according to the present invention.
Figure 2 is a perspective view showing an embodiment in which the folding bed frame according to the present invention is folded.
3 is a view showing the structure of a type-a folding unit according to an embodiment of the present invention.
4 is a view showing the structure of the b-type folding unit according to an embodiment of the present invention.
Figure 5 is an enlarged view of the corner support of the folding bed frame according to the present invention.
Figure 6 is a view for explaining the edge support plate of the folding bed frame according to the present invention.
Figure 7 is a view for explaining the intermediate support of the folding bed frame according to the present invention.
Figure 8 is a view for explaining the coupling structure of the intermediate support of the folding bed frame according to the present invention.
Figure 9 is an enlarged view of the groove in the side of the folding bed frame according to the present invention.
Figure 10 is an enlarged view of the chin on the side of the folding bed frame according to the present invention.

Hereinafter, exemplary embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but identical or similar elements are denoted by the same reference numerals regardless of reference numerals, and redundant descriptions thereof will be omitted. The suffixes "module" and "unit" for constituent elements used in the following description are given or used interchangeably in consideration of only the ease of preparation of the specification, and do not have meanings or roles that are distinguished from each other by themselves. In addition, in describing the embodiments disclosed in the present specification, when it is determined that a detailed description of related known technologies may obscure the subject matter of the embodiments disclosed in the present specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are for easy understanding of the embodiments disclosed in the present specification, and the technical idea disclosed in the present specification is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , It should be understood to include equivalents or substitutes.

Terms including ordinal numbers such as first and second may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

1 is a perspective view showing a folding bed frame structure according to the present invention.

Referring to FIG. 1, the folding bed frame includes an upper frame 11, a lower frame 12, and a support frame 13. The upper frame 11 is located at the top of the bed frame. By seating the slats 92 on the upper frame 11, the mattress of the bed can be placed on the upper frame 11. The lower frame 12 is located at the bottom of the bed frame. The lower frame 12 and the upper frame 11 form a two-layer structure.

The support frame 13 connects and supports the upper frame 11 and the lower frame 12 to form the two-layer structure. The support frame 13 has the shape of a column. For example, the support frame 13 has a cylindrical or rectangular column shape. In addition, the support frame 13 may connect and support the folding parts 20 between the folding part 20 of the upper frame 11 to be described later and the folding part 20 of the lower frame 12 to be described later. . In addition, the support frame 13 may function as a rotation axis of the rotation frames 21 forming the folding part 20.

The upper frame 11 and the lower frame 12 have a rectangular shape and include side frames 14 forming upper, lower, left, and right sides of the rectangle. The side frame 14 is divided into a long axis frame 142 forming the left and right side surfaces and a short axis frame 141 forming the upper and lower sides. The length of the long axis frame 142 is longer than the length of the short axis frame 141. The length of the long axis frame 142 and the short axis frame 141 is determined according to the size of the bed mattress.

The side frame 14 may be formed in a foldable structure. Folding of the side frame 14 may be implemented through a plurality of folding units 20 included in each side frame 14.

The scope of the present invention may include all of the long-axis frames 142 or the short-axis frames 141 are implemented in a foldable structure. In addition, it may be included in the scope of the present invention that the long-axis frames 142 and the short-axis frames 141 are all implemented in a foldable structure.

Hereinafter, the present invention will be described based on the folding structure of the upper frame 11. However, the described folding structure may be applied to the lower frame 12 as it is.

The folding part 20 includes a rotating frame 21 and a rotating part 22. The rotating frames 21 are coupled to the rotating part 22, and the rotating part 22 rotates the rotating frames 21 in an inward or outward direction of the upper frame 11.

The folding part 20 includes an inner rotating folding part 201 that rotates both rotating frames 21 of the rotating part 22 in the inner direction of the upper frame 11, and the coupling shaft is in the inner direction of the upper frame 11. As it moves, it is divided into an outer rotational folding part 202 that rotates the rotation frames 21 on both sides of the rotation part 22 in an outward direction of the upper frame 11.

The side frame 14 of the present invention may include a plurality of folding parts 20, and a plurality of rotation frames 21 and a plurality of rotation parts 22 are combined to form one side frame 14. can do.

The side frame 14 may be folded in a'M' or'W' shape by one outer rotation folding part 202 and two inner rotation folding parts 201. The outer rotational folding part 202 is disposed at the center of the side frame 14, and the inner rotational folding parts 201 may be disposed on both sides of the outer rotational folding part 202, respectively. The outer rotational folding part 202 rotates the two rotational frames 21 which are respectively coupled with the inner rotational folding parts 201 on both sides of the upper frame 11, and the inner rotational folding part 201 is Two rotation frames 21 coupled to both sides of the inner rotation folding part 201 (for example, a rotation frame 21 combined with the outer rotation folding part 202 from the inner rotation folding part 201 and the inner side The rotation frame 21 coupled with the edge support 40 from the rotation folding part 201 is rotated in the inner direction of the upper frame 11.

2 is a perspective view showing an embodiment in which the folding bed frame according to the present invention is folded.

The side frame 14 of FIG. 2 includes a first folding part 203, a second folding part 204, and a third folding part 205 in order. The first folding part 203 corresponds to the inner rotation folding part 201, and the second folding part 204 and the third folding part 205 correspond to the outer rotation folding part 202. The rotation frames 21 of the plurality of folding parts 20 will be referred to as a first rotation frame 211, a second rotation frame 212, a third rotation frame 213, and a fourth rotation frame 214, respectively. do.

The first rotation frame 211 is a frame that is connected from the first edge support part 40 to the second rotation part 222 of the second folding part 204, and the second rotation frame 212 is a second folding part 204 ) Is a frame connected from the second rotation part 222 of the first folding part 203 to the first rotation part 221 of the first folding part 203, and the third rotation frame 213 is the first rotation part 221 of the first folding part 203 ) To the third rotating part 223 of the third folding part 205, and the fourth rotating frame 214 is a first corner support part from the third rotating part 223 of the third folding part 205 ( It is a frame connected to the second edge support portion 40 on the opposite side of 40).

The first folding part 203 rotates the second rotation frame 212 and the third rotation frame 213 in the inner direction of the upper frame 11.

The second folding part 204 rotates the first rotation frame 211 and the second rotation as the coupling axis of the first rotation frame 211 and the second rotation frame 212 moves in the inner direction of the upper frame 11. The frame 212 is rotated in an outward direction of the upper frame 11.

The third folding part 205 rotates the third rotation frame 213 and the fourth rotation as the coupling axis of the third rotation frame 213 and the fourth rotation frame 214 moves in the inner direction of the upper frame 11. The frame 214 is rotated in an outward direction of the upper frame 11.

In FIG. 2, the side frame 14 is shown to be implemented including one inner rotational folding part 201 and two outer rotational folding parts 202. Unlike the illustrated example, the side frame 14 is configured with only one outer rotational folding part 202, or a greater number of inner rotational folding parts 201 or a greater number of outer rotational folding parts ( The side frame 14 may be configured by using 202. At this time, the number (M) of the outer rotating folding part 202 may be one more than the number (N) of the inner rotating folding part 201, and the inner rotating folding part 201 has two outer rotating folding parts ( 202) may be disposed between.

In FIG. 2, it is shown that the inner rotating folding part 201 is disposed in the center of the side frame 14. According to an embodiment of the present invention, the inner rotating folding part 201 may be disposed on the right or left side with respect to the center of the side frame 14. At this time, the first outer rotating folding part 202 disposed in the first direction with respect to the inner rotating folding part 201 is the inner rotating folding part 201 from the end of the first outer rotating folding part 202 in the first direction. It is arranged in a position to divide the side frame 14 into two equally-length rotating frames 21 between the rotating parts 22 of the. Likewise, the second outer rotating folding part 202 disposed in the second direction with respect to the inner rotating folding part 201 is the inner rotating folding part 201 from the end of the second outer rotating folding part 202 in the second direction. It is disposed in a position to divide the side frame 14 into two equally-length rotating frames 21 between the rotating parts 22 of the. Accordingly, the length of the rotating frame 21 coupled to the first outer rotating folding unit 202 and the length of the rotating frame 21 coupled to the second outer rotating folding unit 202 may be different from each other. In addition, rotation frames coupled to both sides of the inner rotation folding part 201 may be different from each other.

In FIG. 2, it is shown that the positions of the folding parts 20 disposed on the left side frame and the right side frame are symmetrical. According to an embodiment of the present invention, the positions of the folding parts 20 disposed on the left side frame and the positions of the folding parts 20 disposed on the right side frame may be asymmetric.

In FIG. 2, the positions of the folding parts 20 disposed on the side frames 14 of the upper frame 11 and the positions of the folding parts 20 disposed on the side frames 14 of the lower frame 12 are shown. It is shown to be in a symmetrical shape. According to an embodiment of the present invention, the positions of the folding parts 20 disposed on the side frames 14 of the upper frame 11 and the folding parts disposed on the side frames 14 of the lower frame 12 ( The positions of 20) may be asymmetrical.

3 and 4 are views showing the structure of the a-type and b-type rotating parts according to an embodiment of the present invention.

The a-type rotating part 22 of FIG. 3 includes a pair of joint parts 302 and a pair of coupling parts 301. The pair of joints 302 are in the form of spreading from the coupling portion toward the rotation frames 21 on both sides at the top and bottom of the coupling portions of the rotation frames 21, respectively. The coupling part 301 rotatably couples the rotating part 22 and the rotating frame 21 at both ends of the joint part 302. The rotation frame 21 may rotate in the inner direction or the outer direction of the upper frame 11 around the coupling part 301. The coupling portion 301 is fixed by penetrating from one joint portion 302 to the opposite joint portion 302 through the rotating frame 21 in a structure of a bolt and a nut. The joint 302 installed at the lower end of the upper frame 11 and the joint 302 installed at the upper end of the lower frame 12 may be connected and fixed by the support frame 13.

The b-type rotating part 22 of FIG. 4 includes a pair of hinge parts 303. The hinge portion 303 includes a rotating shaft and two coupling surfaces. One of the two engaging surfaces is fixed to the rotation frame 21 and the other is fixed to the support frame 13. When the intermediate support 60 to be described later is additionally included, one of the two coupling surfaces may be fixed to the rotation frame 21 and the other may be fixed to the intermediate support 60. The rotation frame 21 may rotate in the inner direction of the upper frame 11 around the support frame 13. The coupling surfaces may be fixed using screws.

The plurality of folding parts 20 constituting the side frame 14 may be configured to include an a-type rotation part 20a or a b-type rotation part 20b. As an example, the inner rotating folding unit 201 may include a b-th rotating unit 20b, and the outer rotating folding unit 202 may include an a-type rotating unit 20a. As an embodiment, in FIGS. 1, 2 and 7, it is shown that the b-type folding part 20b is included in the center and the a-type folding part 20a is located at the left and right of the center. Unlike the illustrated example, all of the folding parts 20 may be configured to include the a-type rotating part 20a, or all of the folding parts 20 may be configured to include the b-type rotating part 20b.

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According to an embodiment of the present invention, the long-axis frames 142 forming the left and right sides among the side frames 14 are implemented to be folded, and the short-axis frames 141 forming the upper and lower sides are adjustable in length. Can be implemented. In addition, on the contrary, the length of the long-axis frames 142 forming the left and right side surfaces can be adjusted, and the short-axis frames 141 forming the upper and lower side surfaces may be folded.

According to an embodiment of the present invention, both a folding structure and a retractable structure can be applied to one side frame 14.

According to an embodiment of the present invention, a lead-in structure may be applied to the support frames 13 as well.

Figure 5 is an enlarged view of the corner support of the folding bed frame according to the present invention. Referring to FIG. 5, the edge support part 40 forms the edge of the upper frame 11 and the lower frame 12 and supports a load applied to the bed frame. The corner support 40 connects the long axis frame 142 and the short axis frame 141.

The corner support 40 includes a corner support frame 501 and a pair of covers 401. The corner support frame 501 may be integrally formed with the shortening frame 141. A pair of covers 401 are installed to cover the top and bottom of the corner support frame 501. The cover 401 includes a cover protrusion 402 for connecting with the long axis frame 142. The cover 401 may be implemented to be rotatable on the edge support frame 501. For example, by rotating the upper cover 401 to which the long-axis frame 142 of the upper frame 11 is coupled, the long-axis frame 142 of the upper frame 11 connected to the edge support 40 may be rotated. In addition, by rotating the lower cover 401 to which the long-axis frame 142 of the lower frame 12 is coupled, the long-axis frame 142 of the lower frame 12 connected to the edge support portion 40 may be rotated. The cover protrusion 402 and the long axis frame 142 may be coupled by a bolt passing through the cover protrusion 402 and the long axis frame 142 and a nut fixing the bolt.

In FIG. 5, it is shown that the long-axis frame 142 is rotatably coupled to the edge support portion 40. Unlike the illustrated example, the shortening frame 141 may be rotatably coupled to the edge support portion 40. Alternatively, both the short axis frame 141 and the long axis frame 142 may be rotatably coupled by the edge support portion 40. To this end, the cover 401 includes a first cover protrusion extending in a first direction to couple with the long axis frame 142 and a second cover protrusion extending in a second direction to couple with the short axis frame 141. I can.

6 is a view for explaining the edge support plate of the folding bed frame according to the present invention. Referring to Figure 6, the present invention folding bed frame may include a corner support plate 502. The edge support plate 502 supplements the supporting force of the lower frame 12. The edge support plate 502 is connected to the edge support frame 501 and may be extended and installed in one or both directions of the side frames 14. 6 shows an example extended and installed in the direction of the shortening frame 141. One or more holes 503 penetrating the edge support plate 502 may be formed in the edge support plate 502. The bed head may be coupled to the bed frame through the hole 503.

7 is a view showing the intermediate support of the folding bed frame according to the present invention.

The intermediate support 60 distributes the load applied to the bed frame. The intermediate support 60 may be included only in the upper frame 11. Alternatively, the intermediate support 60 may be included in both the upper frame 11 and the lower frame 12. When the intermediate support 60 is coupled to the upper frame 11 and the lower frame 12, the intermediate support 60 of the upper frame 11 and the lower frame 12 may be interconnected by the support frame 13. have.

The intermediate support 60 may include at least one of a first intermediate support 601 installed in parallel with the short axis frame 141 and a second intermediate support 602 installed in parallel with the long axis frame 142.

The first intermediate support 601 may be installed to connect the long shaft frames 142, and the second intermediate support 602 may be installed to connect the short frame 141 and the first intermediate support 601. For example, as shown in FIG. 7, the first intermediate support part 602 connects the long axis frame 142 forming the left side and the long axis frame 142 forming the right side, and the first intermediate support part 601 The second intermediate support portions 602 may be connected and installed in the upper and lower directions of ). In this case, the first intermediate support 601 may be included in both the upper frame 11 and the lower frame 12 to be formed in a two-layer structure. The first intermediate support portions 601 installed on the upper frame 11 and the lower frame 12 may be interconnected by the support frame 60. Unlike the illustrated example, the second intermediate support 602 may also be included in both the upper frame 11 and the lower frame 12 to be formed in a two-layer structure.

A frame to which the intermediate support 60 and the intermediate support 60 are connected (e.g., the short frame 141, the long frame 142, the support frame 13, the first intermediate support 601 or the second intermediate support 602 )) can be combined into male and female structures. As an example, Figure 8 is a view for explaining the coupling structure 611 of the intermediate support 60 of the folding bed frame according to the present invention.

Referring to FIG. 8, the coupling structure 611 may include a protruding portion 701 and a receiving portion 702. In the coupling structure 611, a protrusion 701 is formed on a coupling portion of one frame and a receiving portion 702 is formed on the coupling portion of the opposite frame. The protrusion 701 has a protruding shape. The receiving portion 702 has an empty space similar to the shape of the protrusion 701, and has a shape in which the opposite side of the empty space is blocked so that it can be fixed when the protrusion 701 is inserted. As in the example of FIG. 8, protrusions 701 are formed at both ends of the second intermediate support 602, and the support frame 13 and the short axis frame 141 support the first intermediate support 601. The receiving portion 702 may be formed in the support frame 13. Alternatively, the protrusion 701 may be formed on the first intermediate support 601 or the protrusion 701 may be formed on the short axis frame 141.

As described with reference to FIG. 4, the first intermediate support 601 is located between the rotation frames 21, and the rotation frame 21 and the rotation frame 21 by the rotation part 22 (for example, a pair of hinge parts 303). It can also be combined.

The lower frame 12 of the present invention folding bed frame may include a plurality of legs 91. The leg 91 lifts the bed frame by the length of the leg and supports it. The legs 91 may be installed anywhere below the lower frame 12. As an example, in FIG. 2, the legs 91 are shown to be located at the corners of the bed frame and at the bottom of the first folding part 203. In addition, the leg 91 may have an integral form with the support frame 13.

The upper frame 11 of the present invention may include a slat 92. The slats 92 are installed on the upper frame 11, and support the mattress or the load applied on the mattress to be distributed. The slat 92 may be installed parallel to the shortening frame 141. In FIG. 1, the slat 92 shows an example in which the upper frame 11 is installed.

The long-axis frame 142 of the upper frame 11 may have a groove 801 or a pair of jaws 802. The slat 92 is installed in the groove 801 or inserted between the pair of jaws 802 and installed.

9 is an enlarged view of a groove on the side of the folding bed frame according to the present invention.

Referring to FIG. 9, a groove 801 is formed around a boundary between an upper surface and an inner surface of the long-axis frame 142 of the upper frame 11. A groove 801 may be formed in the long-axis frame 142 at predetermined intervals. In the portion where the groove 801 is formed, the long-axis frame 142 has an empty space having a cross-sectional shape of a'b' shape. The empty space may match the shape of the seated slat 92, and the length of the groove 801 may be designed such that the slat 92 seated in the groove 801 is fixed. In addition, the length of the grooves 801 formed at both ends of the long axis frame 142 may be longer than the length of the other grooves 801. The grooves 801 formed at both ends of the long-axis frame 142 may be coupled to the cover protrusion 402. The cover protrusion 402 may be coupled to the groove 801 while being bent in a vertical direction. The bent cover protrusion 402 may be used to fix one surface of the slat 92.

10 is an enlarged view of a pair of chins on the side of the folding bed frame according to the present invention.

Referring to FIG. 10, a pair of jaws 802 is formed on the inner side of the upper frame 11 of the long-axis frame 142 of the upper frame 11. A pair of jaws 802 secures the slats 92 inserted therebetween up and down. A space equal to the height of the slat 92 is formed between the pair of jaws 802.

11: upper frame 12: lower frame
13: support frame
14: side frame
141: short axis frame 142: long axis frame
20: folding part
20a: a-type folding part 20b: b-type folding part
201: inner rotating folding part 202: outer rotating folding part
203: first folding part 204: second folding part
205: third folding part
21: rotating frame
211: first rotation frame 212: second rotation frame
213: third rotation frame 214: fourth rotation frame
22: rotating part
221: first rotating part 222: second rotating part
223: third rotating part
301: coupling portion 302: joint
303: hinge
40: corner support
401: cover 402: cover protrusion
501: edge support frame
502: edge support plate 503: hole
60: intermediate support
601: first intermediate support 602: second intermediate support
611: bonding structure
701: protrusion 702: receiving portion
80: part of the side part
801: groove 802: chin
91: leg 92: slat

Claims (12)

Upper frame;
Lower frame;
Intermediate support;
A plurality of support frames connecting and supporting the upper frame and the lower frame so that the upper frame and the lower frame form a two-layer structure; And
And a corner support plate connected to the support frame for supporting the corners of the upper frame and the lower frame,
Both side portions of the upper frame and the lower frame facing each other are formed to include a folding portion for folding the side portion,
The folding part includes a rotating part; And
Includes rotation frames coupled to the rotation unit on both sides of the rotation unit,
The rotation unit rotates the rotation frames in an inward or outward direction of the upper frame or the lower frame,
The upper frame and the lower frame have a rectangular shape,
The side portion includes a first side portion forming the left and right side surfaces of the rectangle and a second side portion forming the upper and lower side surfaces of the rectangle,
The length of the first side portion is longer than the length of the second side portion,
The intermediate support includes at least two coupling structures capable of being coupled and separated from the intermediate support and other intermediate support or the side surface,
The intermediate support includes a first intermediate support and a plurality of second intermediate support,
The first intermediate support part, through the coupling structure, connects the both first side parts, and
The second intermediate support, through the coupling structure, connects the second side surface and the first intermediate support,
The corner support plate includes a structure extending toward at least one side portion connected to the corner from a support frame supporting the corner,
The structure is a folding bed frame, characterized in that it comprises at least one hole in the structure. The method of claim 1,
Each of the side portions facing each other includes a first folding portion for rotating the rotation frames in the inward direction and a second folding portion and a third folding portion disposed on both sides of the first folding portion,
The second folding part and the third folding part rotate the rotating frames in the outward direction as the coupling axis of the rotating frames moves in the inner direction of the upper frame or the lower frame. The method of claim 2,
The length of the rotation frames of the second folding part and
Folding bed frame, characterized in that the length of the rotation frame of the third folding part is different. The method of claim 2,
The support frame is a folding bed frame, characterized in that it comprises a support frame for connecting and supporting the folding portion of the upper frame and the folding portion of the lower frame. The method of claim 1,
Folding bed frame, characterized in that the number of the plurality of second intermediate support is six. The method of claim 1,
The folding bed frame, characterized in that the at least one intermediate support is formed in a two-layer structure. The method of claim 1,
The coupling structure includes a protrusion and a receiving portion,
The folding bed frame, characterized in that the protrusion and the receiving portion can be coupled and separated in a form that meshes with each other. The method of claim 1,
The side portion includes at least one groove,
The groove is a folding bed frame, characterized in that having an empty space around the boundary between the upper and inner surface of the side portion. The method of claim 1,
At least a pair of jaws are included on the inner side of the side portion,
The pair of chins is a folding bed frame, characterized in that each formed in a shape protruding above and below the space with a predetermined space of the inner surface therebetween. The method of claim 1,
The rotating part includes a joint extending in both directions around a boundary part between the rotating frames,
The folding bed frame, characterized in that the joint is connected to each of the rotating frames by a coupling part for rotational driving. delete delete

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